Java WebSocket Client Spring引导(Java WebSocket Client Spring boot)

 我想创建一个与Web套接字客户端连接到Web套接字服务器的Spring引导应用程序。 
 
 作为例子，我使用了Spring Boot中的入门指南。 
 
 https://spring.io/guides/gs/messaging-stomp-websocket/ 
 
 在这个例子中，您使用spring引导创建一个web套接字服务器，并使用JavaScript连接到它。 
 
 我想运行该服务器并使用另一个创建WebSocketClient对象的弹簧启动应用程序连接到它。 
 
 这是我在Spring Boot客户端应用程序中创建的WebSocketClientConfiguration类 
 
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketClientConfig {

    @Bean
    public WebSocketClient webSocketClient() {
        final WebSocketClient client = new StandardWebSocketClient();

        final WebSocketStompClient stompClient = new WebSocketStompClient(client);
        stompClient.setMessageConverter(new MappingJackson2MessageConverter());

        final StompSessionHandler sessionHandler = new MyStompSessionHandler();
        stompClient.connect("ws://localhost:8080", sessionHandler);
        return client;
    }
}
 
 但是在我的类MyStompSessionHandler中，在handleTransportError方法中，我可以看到异常是 
 
javax.websocket.DeploymentException: The HTTP response from the server [200] did not permit the HTTP upgrade to WebSocket
 
 任何想法我做错了什么？ 

I want to create a spring boot app with a web socket client that connects to a web socket server.
 
As an example, I used the Getting Started guide you can find in Spring Boot.
 
https://spring.io/guides/gs/messaging-stomp-websocket/
 
In this example, you create a web socket server using spring boot and you connect to it using JavaScript.
 
I want to run that server and connect to it using another spring boot application that creates a WebSocketClient object.
 
This is the WebSocketClientConfiguration class that I created in the Spring Boot client App
 
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketClientConfig {

    @Bean
    public WebSocketClient webSocketClient() {
        final WebSocketClient client = new StandardWebSocketClient();

        final WebSocketStompClient stompClient = new WebSocketStompClient(client);
        stompClient.setMessageConverter(new MappingJackson2MessageConverter());

        final StompSessionHandler sessionHandler = new MyStompSessionHandler();
        stompClient.connect("ws://localhost:8080", sessionHandler);
        return client;
    }
}
 
But in my class MyStompSessionHandler, in handleTransportError method I can see that the exception is 
 
javax.websocket.DeploymentException: The HTTP response from the server [200] did not permit the HTTP upgrade to WebSocket
 
Any idea what I am doing wrong?

原文：https://stackoverflow.com/questions/49590598